Full face mask



FIG. 1 is a perspective view of a mask according to an embodiment of our design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a left side view thereof; and,

FIG. 7 is a right side view thereof.

Where included, the use of stippling is intended to denote shading. 

The ornamental design for a full face mask, as shown. 